-- binary
04 0e # version, type
00 80 # length
12 34 56 78 # xid

fe dc ba 98 76 54 32 10 # cookie

ff 00 ff 00 ff 00 ff 00 # cookie_mask

03 # table_id
01 # _command
00 05 # idle_timeout
00 0a # hard_timeout
17 70 # priority

00 00 00 32 # buffer_id
00 00 00 06 # out_port

00 00 00 08 # out_group
00 00 # flags
00 00 # pad

00 01 # match.type
00 3F # match.length # 59 bytes OXMs + 4 bytes match header

80 00 01 08 # match.oxm_list[0].type_len - IN_PORT
00 00 00 04 # match.oxm_list[0].value
00 00 00 05 # match.oxm_list[0].mask

80 00 0A 02 # match.oxm_list[1].type_len - ETH_TYPE
86 DD # match.oxm_list[1].value - ETH_TYPE = IPv6

80 00 14 01 # match.oxm_list[2].type_len - IP Proto
06 # match.oxm_list[2].value = IP_PROTO = TCP

80 00 35 20 # match.oxm_list[3].type_len - IPV6_SRC
1C CA FE 1C B1 10 1C 00 00 28 00 00 00 00 00 00 # match.oxm_list[3].value
FF FF FF FF FF F0 FF FF 1C 2C 3C 00 00 00 00 00 # match.oxm_list[3].mask

00 # match.pad

00 01 # instructions[0].type
00 08 # instructions[0].length
04 # instructions[0].table_id
00 00 00 # pad

00 01 # instructions[1].type
00 08 # instructions[1].length
07 # instructions[1].table_id
00 00 00 # pad
-- python
ofp.message.flow_modify(
    xid=0x12345678,
    cookie=0xFEDCBA9876543210,
    cookie_mask=0xFF00FF00FF00FF00,
    table_id=3,
    idle_timeout=5,
    hard_timeout=10,
    priority=6000,
    buffer_id=50,
    out_port=6,
    out_group=8,
    flags=0,
    match=ofp.match(oxm_list=[
        ofp.oxm.in_port_masked(value=4, value_mask=5),
        ofp.oxm.eth_type(value=0x86dd),
        ofp.oxm.ip_proto(value=6),
        ofp.oxm.ipv6_src_masked(
            value     ='\x1C\xCA\xFE\x1C\xB1\x10\x1C\x00\x00\x28\x00\x00\x00\x00\x00\x00',
            value_mask='\xFF\xFF\xFF\xFF\xFF\xF0\xFF\xFF\x1C\x2C\x3C\x00\x00\x00\x00\x00')
        ]),
    instructions=[
        ofp.instruction.goto_table(table_id=4),
        ofp.instruction.goto_table(table_id=7)])
-- java
builder.setXid(0x12345678)
    .setCookie(U64.parseHex("FEDCBA9876543210"))
    .setCookieMask(U64.parseHex("FF00FF00FF00FF00"))
    .setTableId(TableId.of(3))
    .setIdleTimeout(5)
    .setHardTimeout(10)
    .setPriority(6000)
    .setBufferId(OFBufferId.of(50))
    .setOutPort(OFPort.of(6))
    .setOutGroup(OFGroup.of(8))
    .setFlags(ImmutableSet.<OFFlowModFlags>of())
    .setMatch(
        factory.buildMatch()
            .setMasked(MatchField.IN_PORT, OFPort.of(4), OFPort.of(5))
            .setExact(MatchField.ETH_TYPE, EthType.IPv6)
            .setExact(MatchField.IP_PROTO, IpProtocol.TCP)
            .setMasked(MatchField.IPV6_SRC, 
                       IPv6Address.of(0x1CCAFE1CB1101C00l, 0x0028000000000000l),
                       IPv6Address.of(0xFFFFFFFFFFF0FFFFl, 0x1C2C3C0000000000l))
        	.build()
    )
    .setInstructions(
        ImmutableList.<OFInstruction>of(
                factory.instructions().gotoTable(TableId.of(4)),
                factory.instructions().gotoTable(TableId.of(7))
        )
    );